/*两次闪光效果*/
.product li:before {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(255, 255, 255, 0.4);
	content: '';
	-webkit-transition: -webkit-transform 0.5s;
	transition: transform 0.5s;
	-webkit-transform: scale3d(2, 1.4, 1) rotate3d(0, 0, 1, 45deg) translate3d(0, -140%, 0);
	transform: scale3d(2, 1.4, 1) rotate3d(0, 0, 1, 45deg) translate3d(0, -140%, 0);
}
.product li:hover:before {
	-webkit-transform: scale3d(2, 1.4, 1) rotate3d(0, 0, 1, 45deg) translate3d(0, 140%, 0);
	transform: scale3d(2, 1.4, 1) rotate3d(0, 0, 1, 45deg) translate3d(0, 140%, 0);
}
/*一次闪光效果*/
.product ul li:hover:before{
	transition:left 0.5s;  /*过渡,改变闪光的位置*/
    left:390px;
    
}
.product ul li:before{
            content: '';
            position: absolute;
            width: 120px;
            height: 325px;background-image: linear-gradient()
            top: 0;
            left: -230px;           
            background-image: linear-gradient(to right,rgba(255,255,255,.2) 0,rgba(255,255,255,.3) 50%,rgba(255,255,255,.2) 100%);/*linear-gradient渐变效果*/
            transform: skewX(-30deg);/*沿x轴倾斜*/	
}